Carpet cleaning machine



FIG. 1 is a front elevation view of a carpet cleaning machine showing our new design;

FIG. 2 is a left side elevation view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a front and right side perspective view thereof; and,

FIG. 6 is a front and left side perspective view thereof. 

CLAIM The ornamental design of a carpet cleaning machine, as shown and described. 